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Naslov:Non-Newtonian blood flow around healthy and regurgitated aortic valve with coronary blood flow involved
Avtorji:ID Marn, Jure (Avtor)
ID Iljaž, Jurij (Avtor)
ID Žunič, Zoran (Avtor)
ID Ternik, Primož (Avtor)
Datoteke:URL http://www.dlib.si/details/URN:NBN:SI:doc-TXWURZFZ
 
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Opis:Most numerical simulations about aortic valve are discussing about the blood flow through prosthetic valves, therefore this study covers a biological aortic valve. In this paper the simulation of blood flow around the regurgitated valve as well as around the health valve have been investigated and is showing how the regurgitation affects the heart function and coronary blood flow. Furthermore it also covers the coronary blood flow and its affect on the blood motion around the valve and consequently on the possible calcification. The physical problem has been treated for the period of closed valve, because of the regurgitation, which occurs at that time. For this restriction the assumption of non-elastic geometry has been used. Also the non-Newtonian Power Law model for the blood rheology has been used; because of the regions of slowly moving blood. Results are showing that the coronary blood flow does not have a high impact on the blood motion and thus the calcification is more probable as well that the regurgitation has a strong affect on the heart function, like aortic pressure drop, increased left ventricle volume, etc. The calcification reason has also been stated, but needs some further investigation. This paper covers in detail the geometry of computational domain and physics, so the results can be easily repeated.
Ključne besede:aortna zaklopka, regurgitacija, dinamika tekočin, nenewtonska tekočina
Leto izida:2012
Založnik:= Association of Mechanical Engineers and Technicians of Slovenia et al.
Št. strani:str. 482-491, SI 94
Številčenje:Vol. 58, no. 7/8
PID:20.500.12556/DKUM-52127 Novo okno
UDK:532.5:51
COBISS.SI-ID:16068118 Novo okno
DOI:10.5545/sv-jme.2010.023 Novo okno
ISSN pri članku:0039-2480
NUK URN:URN:SI:UM:DK:XMZBMHUW
Datum objave v DKUM:10.07.2015
Število ogledov:1063
Število prenosov:98
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Ostalo
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Gradivo je del revije

Naslov:Strojniški vestnik
Skrajšan naslov:Stroj. vestn.
Založnik:Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:0039-2480
COBISS.SI-ID:762116 Novo okno

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